3rd Nine Weeks Exam

Question 1

IF two items touch or meet at one or more points, then its said that they …

Answer 1

intersect

Question 2

the location where a figure is divided into two congruent parts is called the

Answer 2

midpoint

Question 3

a ray that divides an angle into two adjacent congruent parts

Answer 3

angle bisector

Question 4

two lines or segments that meet at a 90 degree angle

Answer 4

perpendicular

Question 5

any ray, segment, line, or plane that meets another item at a 90 degree angle at a point where its divided into two congruent parts

Answer 5

perpendicular bisector

Question 6

when two or more lines meet at the same point, they are said to be ….

Answer 6

concurrent lines

Question 7

the point where 3 perpendicular bisectors of a triangle meet is called

Answer 7

circumcenter

Question 8

the point inside a triangle where all angle bisectors meet is called

Answer 8

incenter

Question 9

if the length from a point to another point on either side is the same, it is said to be … from those other two points

Answer 9

equidistant

Question 10

a segment whose endpoints are a vertex of a triangle and the midpoint of the opposite side is called the

Answer 10

median

Question 11

the inside point where all medians of a triangle meet is called the

Answer 11

centriod

Question 12

the segment drawn from a vertex of a triangle at a 90 degree angle to the opposite side is called

Answer 12

altitude

Question 13

the point where all altitudes of a triangle meet is called

Answer 13

orthocenter

Question 14

a segment connecting the midpoints of two sides of a triangle is called

Answer 14

midsegment

Question 15

an outline that proves something is true by assuming its opposite true is called

Answer 15

indirect proof

Question 16

… has three congruent sides

Answer 16

equilateral triangle

Question 17

the … of an isosceles triangle are the sides that are the same length

Answer 17

legs

Question 18

… is a three-sided polygon with all sides of different lengths

Answer 18

scalene triangle

Question 19

the angles that are adjacent to interior angles of a trianlge are

Answer 19

exterior angles

Question 20

when we use a rectangular grid or plane and place geometric shapes on it to prove statements about these figures, we are using a …

Answer 20

coordinate proof

Question 21

a three sided polygon with a 90 degree angle

Answer 21

right triangle

Question 22

… is a location where the sides of a polygon join

Answer 22

vertex

Question 23

… is a statement that is easily proved using theorems

Answer 23

corollary

Question 24

the … is the noncongruent side opposite its vertex angle

Answer 24

base of an isosceles triangle

Question 25

… are the parts of a triangle that share a common point

Answer 25

adjacent sides

Question 26

… is a three sided polygon with all angles measuring 60 degrees

Answer 26

equiangular triangle

Question 27

… is the side of a triangle that’s opposite the 90 degree angle

Answer 27

hypotenuse

Question 28

the noncongruent angle thats always opposite the base is called…

Answer 28

vertex angle

Question 29

the … of a right triangle are the sides that form the 90 degree angle

Answer 29

legs

Question 30

… is a three sided polygon with all angles measuring between 0 and 90 degrees

Answer 30

acute triangle

Question 31

two geometric figures are … if they have exactly the same shape size

Answer 31

congruent

Question 32

if triangle ABC is congruent to triangle DEF, then we know that AB and DE are called

Answer 32

corresponding sides

Question 33

the … of an isosceles triangle are always congruent angles

Answer 33

base angles

Question 34

… si a three sided polygon with an angle measuring between 90 and 180 degrees

Answer 34

obtuse triangle

Question 35

a triangle with two congruent sides and two congruent angles is called

Answer 35

isosceles triangle